Ventilating fan-wheel.



D. F. LEPLEY.

VENTILATING FAN WHEEL.

APPLICATION FILED SEPT-l8, 1914.

Patented Aug. 17, 1915.

2 SHEETS-SHEET I.

neys s e s. s. e n w Witnesses D. F. LEPLEY.

VENTILATING FAN WHEEL.

APPLICATION FILED ssrmae, 1914.

1,150,278. Patented Aug. 17, 1915.

2 SHEETS-SHEET 2.

Attorneys,

COLUNLB XA PLANOGRAPH 120.,WASHINGTON. D. C.

. To all whom it may concern f ran s'ra Parana orrrbn DANIEL IE. LEPLEY,or CONNELLSVILLE, PENNSYLVANIA.

Be it known. that I, DANIEL F. LEPLEY, a citizen of the UnitedStates,residing at Con- "nellsvill'e, in the county of Fayette and StateofPennsylvania, have invented "a new and useful Ventilating Fan-lVheel,of which the followingisaspecification I i The present invention relates"to improvements in ventilating fan wheels, one object of the inventionbeing the provision of a divisional disk of a doublefventilating fanwheel that increases the efliciency "of the fan wheel inthat itprevents'the productions of eddiesdue to high windsandthe like thatusually tend to prevent the; maximum passage of'air betweenthe bladeswhen the wind is blowing; from one "side and isl'deflected by thedivisional disk.

In constructing fan wheels oft'his character, it is' generally thepractice to use a solid divisional'disk of substantially the fulldiameter of the wheel, thus dividingthe wheel into practically twowheels,"in which the respective'ope'rating sides or blades are isolatedfrom oneanother. It has been found in pr'actisefthat when the wind isblowing from one side and is deflected by the divi' sional disk, that.not only the maximum efliciency of the side. against which the Wind isdirected is affected, but the blades upon the opposite side of the diskare also affected, thus preventing the fanfrom operating to produce thedesired result. To overcome this defect, it has been found that byreducing the diameter of the divisional disk, so that the peripherythereof is within the inner edge of the outer supporting rings of thefan wheel to produce a concentric space adjacent the intermediate edgesof the blades or entirely between the blades at said intermediateportion, that the currents of air due to the wind engaging either sideof the divisional disk, will rather assist than retard the proper actionof the blades in producing the desired ventilating effect.

Vith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawings Figure 1 is a View showmay be i f vnNTiLaTINe FAN-WHEEL.

Specification of Letters fatent, Patented Aug. 17, 1915. Applicationfiled-September 18,1914. Seria1No.S62,393i

ing one half of the ventilating fan wheel in side elevation and theother half in section. F ig.'2 is a view illustrating a portion of thefan wheel inend elevation and the lower portion in section.

Referring to the-drawings, the numeral 1 designatcs the sectional shaftengaging members of the fan wheel, which in large wheels is made in twosections so that the wheel transported in two parts for assemblage. Themain spokes 4: are carried by the memher 1, while a sectional diskmember 3 is disposed uponthe shaft (not shown) intermediate of themembers 1, to support the divisional disk or partition 11, to which isattached the radial plates 2. 7

Connected to the outer ends of the plates 2, are the annular members orrims 5 which constitute the main outer rim of the wheel.

Connected tothe spoke at and of lesser width blades are clearlyillustrated in Fig. 1, in'

which the longer blades 7 are so constructed that their inner ends areat a tangent to. and

within the periphery of the partitional disk 11 while the inner ends ofthe blades 8 are at a slightlyless angle than the blades 7 and terminateat a point substantially at the periphery of the disk 11. The blades 9are between the rims 5 and are substantially the length of the widththereof.

It will be noted that the partitional disk 11 is of a diameter less thanthe internal diameter of the outer rims 5, therefore providing betweenits periphery and the inner diameter of the partitional ring 6, theconcentric opening 12, thereby providing the passageway for the unduedraft or wind blown against either side of the disk 11 so that the sameis not deflected to interfere with the efficiency of the blades at thewind side of the disk 11 and at the same time provides a passage so thatthe currents of air are permitted to pass therebeyond and be properlydeflected through the blades at the opposite side of the disk withoutinterfering with the efficiency thereof. It has also been found that thering or band 6 may be dispensed with, thus providing a clear open spacebeyond the periphery of the partitional disk 11, it. being essential,however, that the periphery of the disk 11 terminate at a point withinthe internal diameter of inner diameter of the annular blade supportingmembers. w

3. A ventilating fan wheel, including a hub, spokes carried thereby, twoannular members carried by the spokes, a plurality of blades supportedbetween the annular ;members, and a partitional disk carriedby the hubintermediate of its ends and having its periphery disposed in spacedrelation to the inner diameters of the annular members.

LA ventilating fan wheel, including a hub, spokes carried thereby, twoannular members carried by the spokes, a plurality of blades supportedbetween the annular members, a partitional disk carried by the hubintermediate of its ends and having its periphery disposed in spacedrelation to the Copies of this patent may be obtained for innerdiameters of V the annular members, and an annular blade partitlonmgmember carried between theannular members and the blades andcircumferentially alined but spaced from the partitional disk,

5. A ventilating fan wheel, including a hub, a plurality of spokescarried thereby,

two flat rings attached to the spokes at 0p posite sides, a plurality ofblades disposed between the fiat bands, and a partitional diskcarried'by the hub intermediate of its ends, said-partitional diskhaving its pe diameter of the rings.

'riphery of lesser diameterxthan the inner 6. A ventilating fan wheel,including ar hub, a plurality of spokes carried thereby, two fiat ringsattached to the spokes at ropposite sides, a plurality of bladesdisposed between the flatr'ings, a partitional diskcarriediby the hubintermediate of its ends, i

said" partitional disk having its periphery of lesser diameter than theinner; diameter of the rings, and a partitional'ring disposed betweenthe blade supporting rings and in, v J

circumferential alinement' 'b'ut spaced from the periphery of thepartitional disks- In testimony that I claim thefioregoing as my 0w n,'Ihave heretoaflixedmy signature in the presenceoftwo witnesses:

Witnesses: .7 7

IVY E. SIMPSON, v f. PHILOMENA A. RooKELLL- five cents each, byaddressing the Commissioner ,ZPate nts. Washington, D. 6 1

. AN1ELF. EPLEY.

